This handbook was developed by Project 10, an on-campus counseling program within the Los Angeles (California) Unified School District. The handbook covers many of the issues and problems that arise for homosexual high school students. Introductory material includes a history of the informal beginnings of Project 10. The first chapter describes the structure and inception of Project 10 and its founder, Virginia Uribe. Chapter 2 is an overview of the clinical and historical approaches to homosexuality by Robert J. Bidwell. Chapter 3 treats homosexual teen suicide. Chapter 4 explores gay and lesbian adolescents and their families. Chapter 5 examines health issues for gay and lesbian adolescents and their families. Chapter 6 covers minority issues. Chapter 7 reviews strategies for counseling and intervention with lesbian and gay adolescents. Chapter 8 explains how to start a Project 10 support system in other schools. Chapter 9 is an essay on homophobia by Virginia Uribe. Chapter 10 includes two model lesson plans on gay and lesbian awareness and an action plan to target name-calling in the classroom. The following are appended: (1) a list of books for a library on homosexual issues; (2) a teacher's self-evaluation on non-biased behavior; (3) a list of strategies for managing homophobia in schools; (4) a list of strategies for dealing with opposition; and (5) an article on Project 10 from the "Los Angeles Times". Several of the chapters include references. (JB)